Screening device



March 2`, 192s. 1,575,601 y C. G. KNOBLAUCH SCREENINGl DEVICE OriginalFiled Nov. 26, 1923 Patented Mar. 2, 1926.

UNITEDk sTATEs 1,575,6oi PATENT OFFICE.

CURT G. KNOBLAUCH, 0F lCHICAGO, ILLINOIS,ASSIGNOR, BY MESNE ASSIGNMENTS,T0 GOODWIN` GARST, OF LAKE BLUFF, ILLINOIS.

i SCREENING DEVICE.

original application inea' Npvemper 26,1923, serial No. 677,132. Dividedand this application mea y [o all y'whom it may concern.'

Be it known that I, CURT G. KNoLAUcH, a citizen of the United States,anda resident of the city of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in ScreeningDevices, of which the following is a specification.

My invention relates to new and useful improvements in screeningdevices, and more particularly to rotary screens, such as are used forscreening and washing particles of material, such as sand and the like.

A11 object is to provide such a device with means for screening thematerial while said material is submerged in the cleaning liquid, forthoroughly cleansing the material.

Another object isto provide such a device with means 011 thescreeningmechanism and movable therewith for elevating, deflecting anddischarging the screened material.

A further object is to provide screening mechanism with means forelevating the screened material and meanstoadjust the capacity of saidelevating means.

And another object is to provide such a device having a rotary screenmounted to operate'in a liquid container, for simultaneously screeningand washing the mate-rial in said liquid, and having means on itsperiphery for elevating and deflecting the screened and washed materialout of the container. y

Other objects will appear hereinafter.

This is a division'of applicants prior application for screeningdevices, Serial No. 677,132, vfiled November 26, 192 i' The inventionconsists in the combinations and arrangements of parts hereinafterdescribed and claimed. y

The invention will be best understood by reference to the accompanyingdrawings forming a part of this specification, and `in which, 1

Fig. 1 shows my invention partly inside elevation and partly in section;and

Figs. 2 and 3 are substantially vertical cross sections takenrespectively on lines 2-2 and 3-3 of Fig. 1.

The form of invention illustrated in this application comprises a liquidcontainer for receiving water or any suitable cleaning iuid, and rollers31 are mounted in bearings 32 on one end of the container February 16,1925. Serial No. 9,377.

and in similar bearings '32 fastened in a notch 33 at the other end ofsaid container. The rollers are preferably fianged to engage bearingbands 34 and 34p on the necks or trunnions 35 and 35 fastened on the endmembers 36 and 36 which are suitably fastened on the cylindricalscreen37, as with fianges 38, the device thus rotating on such rollers at thedesired slant or inclination. A sprocket gear 39 or similar means ismounted on the outer end of trunnion35 for application of the drivingpower.

Several screens of various mesh may also be used, saidscreens beingaxially alined and the screen 37 of the finest mesh being placed in thereceiving end. The elevating members or bars 4.0 have plates 11 adjustably and replaceably mounted with suitable slots 4:2 and bolts 13 ontheir outer flanges 40', said bars being` removably fastened, as withbolts Tl-4, to the outwardlyeturned ends 45 of the re-enforcing bands46,and deilecting members 47 are fastened with suitable bolts on theoutwardly-turned ends 15 of said bands 46, said member 40 being spacedfrom member 47 to provide a vdischarge opening 48.

Curved plates 50 are mounted in the discharge end of the screen formoving the oversized and unscreened material out through thel centraldischarge opening 51 formed in trunnion 35, and in gear 39.

The bearings are arranged'on the liquid container 30 to mount; thecylindrical screen at a. suitable angle or inclination, andwater or thedesired cleaning fluid is placed in the container to substantially theline F indicated in the drawings. The material to be screened andwashed, such as sand or the like, is then entered through the open upperend or through the receiving trunnion and the cylindrical screen isrotated, with vthe lower part thereof operating in the fiuid, and the'contained sand or material being also mainly submerged under the levelof said fluid and being thus simultaneously screened and cleaned. Theelevatingmembers thereupon carryv the screened and cleaned sand ormaterial upwardly and finally drop it through the provided dischar eslot or space on to the defiecting mem ers which deflect such materialand discharge it beyond the container 30, as clearly indicated in Fig.2. And where screens of various mesh or gauge are used, the material isgraded according to ineness, simultaneously and automatically dischargedand deposited outside of the container in the respective positionsopposite the Screens oi the various mesh, while the oversized andunscreened material is discharged and deposited beyond the discharge endof the screen.

lVhile I have illustrated and described the preterred torni ofconstruction for carrying my invention into e'l'lect, this is capable ofvariation and modification without departing from the spirit of theinvention. I, therefore, do not wish to be limited to the precisedetails ol construction set forth, but desire to avail myselt ot suchvariations and modiiications as come within the scope ot the appendedclaims.

Having described my invention, what I claim as new and desire to secureby Letters Patent is:

1. A screening device comprising in combination a liquid container, arotary screen operating in the liquid in said container and having atrunnion at each end, means extending laterally outward from said screen'for elevating and deiecting material from said container, and membersadjustably mounted on said elevating means for adjusting said elevatingmeans for capacity.

2. A screening device comprising `in combination' a. liquid container, arotary screen operating in the liquid in said container and having atrunnion at each end, means extending laterally outward from said screenfor elevating and detlecting material radially from said container,means adjust-ably mounted on said elevating means for adjusting the samefor capacity, and curved members in the end of said screen fordischarging unsereened material axially through the adjacent trunnion.

3. A screening device comprising in combination, a liquid container, arotary screen operating in the liquid in said container and beingsupported at each end on said container, means extending laterally fromthe periphery of said screen for elevating material from said container,and including means at the outer end of said elevating means adjustableto vary the capacity thereof, and detlecting means mounted rearward ofsaid elevating means to discharge the elevated material beyond saidcontainer.

4, A screening device comprising in combination a liquid container, arotary screen operating in the liquid in said container and having asupport at each end, reenforcing members on the periphery of saidscreen, an elevating member mounted on one outwardly turned end of saidreenforcing mcmbers, and a deiiecting member mounted on the other end ofsaid reenforcing members.

5. A screening ldevice comprising a cylindrical screen, reenforcingbands mounted circumferentially of said screen, an elevating bar mountedon one end of said bands, means adjustably mounted. on the outer partol' said bar to vary the carrying capacity thereof, and a de'lectingmember mounted on the other end of said bands.

6. A screening device comprising in combination a liquid container, arotary screen operating in the liquid in said container and beingsupported at each end on said container, reenlorcing means on saidscreen,

elevating bars mounted on said reentorcing i means and carryingadjustable means to adjust said bars for capacity, detlecting meansvmounted on said reenforcing means rearward of said elevating means, fordefleeting material outward of said container, land means in the end ofsaid screen for discharging lmscreened material outward of saidcontainer.

7. A screening device comprising in combination, a liquid container, arotary screen operating in said container and having a trunnion with abearing band at each end, roller means on said container engaging saidbands for Arotatably supporting said device, spaced longitudinal barsmounted on the periphery of said screen for elevating and deflectingmaterial beyond said container, and a driving gear fastened on thedischarge trunnion for operating the device.

8. A screening device comprising in combination, a liquid container, arotary screen loperating in said container and having a trunnion with abearing band at each end, roller means on said container engaging saidbands for rotatably supporting said device, spaced longitudinal barsmounted on the periphery of said screen for elevating and deliectingmaterial beyond said container, a driving gear fastened on the dischargetrunnion, and spiral blades in the discharge end of said screen fordischarging the unscreened and oversized material through said dischargetrunnion and driving gear.

In testimony whereof I have signed my name'to this specication.

CURT e. KNoBLAUoH.

